Hannover Messe 2019 Digitisation making software safer

Editor: Theresa Knell

With the digitisation of many areas of life, software safety is becoming increasingly important in order to avoid danger to human life and financial losses.

This is how it looks when G2 technology searches for faults.
This is how it looks when G2 technology searches for faults.
(Source: CAU Kiel)

Many of the areas concerned are safety-relevant, for example autonomous driving, Industry 4.0, or aerospace. To ensure a high level of safety software, new methods are needed, says the Christian Albrechts University in Kiel (CAU). This research team, led by Prof. Dirk Nowotka of the Institute for Informatics, is therefore presenting at the fair a new procedure by the name of G2.

Automatic checking of data dependence

Together with his working group, Nowotka has developed a procedure for fully automatic analysis of data dependence in parallel and complex programs. “This technology provides the opportunity for comprehensive analysis of complex software with previously unreached accuracy. In addition, G2 finds faults in systems which simple testing has previously not been able to detect. The algorithms used here raise checking for data dependence to a new level,” the research chief explains.

Software today consists of the integration of many individual modules, the press release informs us. Whether two modules communicate with each other, and along which paths, can only be worked out from the program code with much time and effort because of the high complexity involved. Knowledge of all possible data dependences between modules is however a prerequisite for developing reliable software systems. “Observing software behaviour under laboratory conditions is not sufficient to ensure protection of all data dependences,” Nowotka reports. “G2 calculates the data dependence between modules by analysing the program code. For this, it is not necessary to run the software.”

Analysing complex software with acceptable time and effort

This means that even complex software innovations with high security requirements can be analysed with acceptable expenditure of time and effort, the University informs us. This analysis system has already been tried out as part of research projects involving industry in the fields automobile, industrial installations and aerospace.

The CAU is appearing at the Hannover Messe for the third time, we hear. The scientists from northern Germany are presenting 17 research projects this year.

Visit Christian-Albrechts-Universität zu Kiel (CAU) at Hannover Messe in Hall 2, Booth C 07.

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